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Diffstat (limited to 'Utilities/Sphinx/cmake.py')
| -rw-r--r-- | Utilities/Sphinx/cmake.py | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/Utilities/Sphinx/cmake.py b/Utilities/Sphinx/cmake.py new file mode 100644 index 0000000..336c74a --- /dev/null +++ b/Utilities/Sphinx/cmake.py @@ -0,0 +1,314 @@ +#============================================================================= +# CMake - Cross Platform Makefile Generator +# Copyright 2000-2013 Kitware, Inc., Insight Software Consortium +# +# Distributed under the OSI-approved BSD License (the "License"); +# see accompanying file Copyright.txt for details. +# +# This software is distributed WITHOUT ANY WARRANTY; without even the +# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# See the License for more information. +#============================================================================= +import os +import re + +# Monkey patch for pygments reporting an error when generator expressions are +# used. +# https://bitbucket.org/birkenfeld/pygments-main/issue/942/cmake-generator-expressions-not-handled +from pygments.lexers import CMakeLexer +from pygments.token import Name, Operator +from pygments.lexer import bygroups +CMakeLexer.tokens["args"].append(('(\\$<)(.+?)(>)', + bygroups(Operator, Name.Variable, Operator))) + + +from docutils.parsers.rst import Directive, directives +from docutils.transforms import Transform +try: + from docutils.utils.error_reporting import SafeString, ErrorString +except ImportError: + # error_reporting was not in utils before version 0.11: + from docutils.error_reporting import SafeString, ErrorString + +from docutils import io, nodes + +from sphinx.directives import ObjectDescription +from sphinx.domains import Domain, ObjType +from sphinx.roles import XRefRole +from sphinx.util.nodes import make_refnode +from sphinx import addnodes + +class CMakeModule(Directive): + required_arguments = 1 + optional_arguments = 0 + final_argument_whitespace = True + option_spec = {'encoding': directives.encoding} + + def __init__(self, *args, **keys): + self.re_start = re.compile(r'^#\[(?P<eq>=*)\[\.rst:$') + Directive.__init__(self, *args, **keys) + + def run(self): + settings = self.state.document.settings + if not settings.file_insertion_enabled: + raise self.warning('"%s" directive disabled.' % self.name) + + env = self.state.document.settings.env + rel_path, path = env.relfn2path(self.arguments[0]) + path = os.path.normpath(path) + encoding = self.options.get('encoding', settings.input_encoding) + e_handler = settings.input_encoding_error_handler + try: + settings.record_dependencies.add(path) + f = io.FileInput(source_path=path, encoding=encoding, + error_handler=e_handler) + except UnicodeEncodeError, error: + raise self.severe('Problems with "%s" directive path:\n' + 'Cannot encode input file path "%s" ' + '(wrong locale?).' % + (self.name, SafeString(path))) + except IOError, error: + raise self.severe('Problems with "%s" directive path:\n%s.' % + (self.name, ErrorString(error))) + raw_lines = f.read().splitlines() + f.close() + rst = None + lines = [] + for line in raw_lines: + if rst is not None and rst != '#': + # Bracket mode: check for end bracket + pos = line.find(rst) + if pos >= 0: + if line[0] == '#': + line = '' + else: + line = line[0:pos] + rst = None + else: + # Line mode: check for .rst start (bracket or line) + m = self.re_start.match(line) + if m: + rst = ']%s]' % m.group('eq') + line = '' + elif line == '#.rst:': + rst = '#' + line = '' + elif rst == '#': + if line == '#' or line[:2] == '# ': + line = line[2:] + else: + rst = None + line = '' + elif rst is None: + line = '' + lines.append(line) + if rst is not None and rst != '#': + raise self.warning('"%s" found unclosed bracket "#[%s[.rst:" in %s' % + (self.name, rst[1:-1], path)) + self.state_machine.insert_input(lines, path) + return [] + +class _cmake_index_entry: + def __init__(self, desc): + self.desc = desc + + def __call__(self, title, targetid): + return ('pair', u'%s ; %s' % (self.desc, title), targetid, 'main') + +_cmake_index_objs = { + 'command': _cmake_index_entry('command'), + 'generator': _cmake_index_entry('generator'), + 'manual': _cmake_index_entry('manual'), + 'module': _cmake_index_entry('module'), + 'policy': _cmake_index_entry('policy'), + 'prop_cache': _cmake_index_entry('cache property'), + 'prop_dir': _cmake_index_entry('directory property'), + 'prop_gbl': _cmake_index_entry('global property'), + 'prop_sf': _cmake_index_entry('source file property'), + 'prop_test': _cmake_index_entry('test property'), + 'prop_tgt': _cmake_index_entry('target property'), + 'variable': _cmake_index_entry('variable'), + } + +def _cmake_object_inventory(env, document, line, objtype, targetid): + inv = env.domaindata['cmake']['objects'] + if targetid in inv: + document.reporter.warning( + 'CMake object "%s" also described in "%s".' % + (targetid, env.doc2path(inv[targetid][0])), line=line) + inv[targetid] = (env.docname, objtype) + +class CMakeTransform(Transform): + + # Run this transform early since we insert nodes we want + # treated as if they were written in the documents. + default_priority = 210 + + def __init__(self, document, startnode): + Transform.__init__(self, document, startnode) + self.titles = {} + + def parse_title(self, docname): + """Parse a document title as the first line starting in [A-Za-z0-9<] + or fall back to the document basename if no such line exists. + The cmake --help-*-list commands also depend on this convention. + Return the title or False if the document file does not exist. + """ + env = self.document.settings.env + title = self.titles.get(docname) + if title is None: + fname = os.path.join(env.srcdir, docname+'.rst') + try: + f = open(fname, 'r') + except IOError: + title = False + else: + for line in f: + if len(line) > 0 and (line[0].isalnum() or line[0] == '<'): + title = line.rstrip() + break + f.close() + if title is None: + title = os.path.basename(docname) + self.titles[docname] = title + return title + + def apply(self): + env = self.document.settings.env + + # Treat some documents as cmake domain objects. + objtype, sep, tail = env.docname.rpartition('/') + make_index_entry = _cmake_index_objs.get(objtype) + if make_index_entry: + title = self.parse_title(env.docname) + # Insert the object link target. + targetid = '%s:%s' % (objtype, title) + targetnode = nodes.target('', '', ids=[targetid]) + self.document.insert(0, targetnode) + # Insert the object index entry. + indexnode = addnodes.index() + indexnode['entries'] = [make_index_entry(title, targetid)] + self.document.insert(0, indexnode) + # Add to cmake domain object inventory + _cmake_object_inventory(env, self.document, 1, objtype, targetid) + +class CMakeObject(ObjectDescription): + + def handle_signature(self, sig, signode): + # called from sphinx.directives.ObjectDescription.run() + signode += addnodes.desc_name(sig, sig) + return sig + + def add_target_and_index(self, name, sig, signode): + targetid = '%s:%s' % (self.objtype, name) + if targetid not in self.state.document.ids: + signode['names'].append(targetid) + signode['ids'].append(targetid) + signode['first'] = (not self.names) + self.state.document.note_explicit_target(signode) + _cmake_object_inventory(self.env, self.state.document, + self.lineno, self.objtype, targetid) + + make_index_entry = _cmake_index_objs.get(self.objtype) + if make_index_entry: + self.indexnode['entries'].append(make_index_entry(name, targetid)) + +class CMakeXRefRole(XRefRole): + + # See sphinx.util.nodes.explicit_title_re; \x00 escapes '<'. + _re = re.compile(r'^(.+?)(\s*)(?<!\x00)<(.*?)>$', re.DOTALL) + _re_sub = re.compile(r'^([^()\s]+)\s*\(([^()]*)\)$', re.DOTALL) + + def __call__(self, typ, rawtext, text, *args, **keys): + # Translate CMake command cross-references of the form: + # `command_name(SUB_COMMAND)` + # to have an explicit target: + # `command_name(SUB_COMMAND) <command_name>` + if typ == 'cmake:command': + m = CMakeXRefRole._re_sub.match(text) + if m: + text = '%s <%s>' % (text, m.group(1)) + # CMake cross-reference targets frequently contain '<' so escape + # any explicit `<target>` with '<' not preceded by whitespace. + while True: + m = CMakeXRefRole._re.match(text) + if m and len(m.group(2)) == 0: + text = '%s\x00<%s>' % (m.group(1), m.group(3)) + else: + break + return XRefRole.__call__(self, typ, rawtext, text, *args, **keys) + +class CMakeDomain(Domain): + """CMake domain.""" + name = 'cmake' + label = 'CMake' + object_types = { + 'command': ObjType('command', 'command'), + 'generator': ObjType('generator', 'generator'), + 'variable': ObjType('variable', 'variable'), + 'module': ObjType('module', 'module'), + 'policy': ObjType('policy', 'policy'), + 'prop_cache': ObjType('prop_cache', 'prop_cache'), + 'prop_dir': ObjType('prop_dir', 'prop_dir'), + 'prop_gbl': ObjType('prop_gbl', 'prop_gbl'), + 'prop_sf': ObjType('prop_sf', 'prop_sf'), + 'prop_test': ObjType('prop_test', 'prop_test'), + 'prop_tgt': ObjType('prop_tgt', 'prop_tgt'), + 'manual': ObjType('manual', 'manual'), + } + directives = { + 'command': CMakeObject, + 'variable': CMakeObject, + # Other object types cannot be created except by the CMakeTransform + # 'generator': CMakeObject, + # 'module': CMakeObject, + # 'policy': CMakeObject, + # 'prop_cache': CMakeObject, + # 'prop_dir': CMakeObject, + # 'prop_gbl': CMakeObject, + # 'prop_sf': CMakeObject, + # 'prop_test': CMakeObject, + # 'prop_tgt': CMakeObject, + # 'manual': CMakeObject, + } + roles = { + 'command': CMakeXRefRole(fix_parens = True, lowercase = True), + 'generator': CMakeXRefRole(), + 'variable': CMakeXRefRole(), + 'module': CMakeXRefRole(), + 'policy': CMakeXRefRole(), + 'prop_cache': CMakeXRefRole(), + 'prop_dir': CMakeXRefRole(), + 'prop_gbl': CMakeXRefRole(), + 'prop_sf': CMakeXRefRole(), + 'prop_test': CMakeXRefRole(), + 'prop_tgt': CMakeXRefRole(), + 'manual': CMakeXRefRole(), + } + initial_data = { + 'objects': {}, # fullname -> docname, objtype + } + + def clear_doc(self, docname): + for fullname, (fn, _) in self.data['objects'].items(): + if fn == docname: + del self.data['objects'][fullname] + + def resolve_xref(self, env, fromdocname, builder, + typ, target, node, contnode): + targetid = '%s:%s' % (typ, target) + obj = self.data['objects'].get(targetid) + if obj is None: + # TODO: warn somehow? + return None + return make_refnode(builder, fromdocname, obj[0], targetid, + contnode, target) + + def get_objects(self): + for refname, (docname, type) in self.data['objects'].iteritems(): + yield (refname, refname, type, docname, refname, 1) + +def setup(app): + app.add_directive('cmake-module', CMakeModule) + app.add_transform(CMakeTransform) + app.add_domain(CMakeDomain) |